Why Cast Trunnions SUCK!
This video thoroughly explains the critical differences between cast, billet, and forged AK trunnions. Cast trunnions are identified as weak due to porosity and lack of grain structure, often used to cut costs in budget AKs. Billet trunnions, machined from solid steel, offer better strength, while forged trunnions are the strongest due to aligned grain structure, representing the military standard.









